ATE455408T1 - CREATION OF SUBSTRINGS WHILE MAINTAINING PRIVACY - Google Patents

CREATION OF SUBSTRINGS WHILE MAINTAINING PRIVACY

Info

Publication number
ATE455408T1
ATE455408T1 AT07011112T AT07011112T ATE455408T1 AT E455408 T1 ATE455408 T1 AT E455408T1 AT 07011112 T AT07011112 T AT 07011112T AT 07011112 T AT07011112 T AT 07011112T AT E455408 T1 ATE455408 T1 AT E455408T1
Authority
AT
Austria
Prior art keywords
share
string
substrings
creation
start value
Prior art date
Application number
AT07011112T
Other languages
German (de)
Inventor
Florian Kerschbaum
Sa De Souza Luciana Moreira
Original Assignee
Sap Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sap Ag filed Critical Sap Ag
Application granted granted Critical
Publication of ATE455408T1 publication Critical patent/ATE455408T1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/008—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols involving homomorphic encryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/04—Masking or blinding

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Storage Device Security (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Telephonic Communication Services (AREA)

Abstract

A system (100) to contribute to creating a substring of a string may include a communication unit and a processing unit. The communication unit may be configured to receive an encrypted representation (342) of a second share of the string. The string may be identical to the second share of the string combined with a first share of the string. The communication unit may be configured to send a rearranged representation (346) of the encrypted representation (342) of the second share of the string to a further system (200). The processing unit may be configured to rearrange a representation (344) of the encrypted representation (342) of the second share of the string using a first share of a start value of the substring. The start value may be identical to the first share of the start value added to a second share of the start value.
AT07011112T 2006-07-06 2007-06-06 CREATION OF SUBSTRINGS WHILE MAINTAINING PRIVACY ATE455408T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/482,262 US7986780B2 (en) 2006-07-06 2006-07-06 Privacy-preserving substring creation

Publications (1)

Publication Number Publication Date
ATE455408T1 true ATE455408T1 (en) 2010-01-15

Family

ID=38577933

Family Applications (1)

Application Number Title Priority Date Filing Date
AT07011112T ATE455408T1 (en) 2006-07-06 2007-06-06 CREATION OF SUBSTRINGS WHILE MAINTAINING PRIVACY

Country Status (4)

Country Link
US (1) US7986780B2 (en)
EP (1) EP1876749B1 (en)
AT (1) ATE455408T1 (en)
DE (1) DE602007004262D1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1841122A1 (en) * 2006-03-31 2007-10-03 Alain Schumacher Encryption method for highest security applications
US7995750B2 (en) * 2006-07-06 2011-08-09 Sap Ag Privacy-preserving concatenation of strings
US8818959B2 (en) 2008-12-02 2014-08-26 Adobe Systems Incorporated Virtual embedding of files in documents
JP5737788B2 (en) * 2011-12-16 2015-06-17 インターナショナル・ビジネス・マシーンズ・コーポレーションＩｎｔｅｒｎａｔｉｏｎａｌ Ｂｕｓｉｎｅｓｓ Ｍａｃｈｉｎｅｓ Ｃｏｒｐｏｒａｔｉｏｎ A system for sending messages via lost communication
US9740879B2 (en) 2014-10-29 2017-08-22 Sap Se Searchable encryption with secure and efficient updates
US9342707B1 (en) 2014-11-06 2016-05-17 Sap Se Searchable encryption for infrequent queries in adjustable encrypted databases
US9830470B2 (en) 2015-10-09 2017-11-28 Sap Se Encrypting data for analytical web applications
US10360390B2 (en) * 2016-12-14 2019-07-23 Sap Se Oblivious order-preserving encryption
US10528556B1 (en) * 2017-12-31 2020-01-07 Allscripts Software, Llc Database methodology for searching encrypted data records
US11985232B2 (en) * 2018-10-26 2024-05-14 Nec Corporation Secure computing server, system, secure computing method, and program
US10746567B1 (en) 2019-03-22 2020-08-18 Sap Se Privacy preserving smart metering

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5495532A (en) * 1994-08-19 1996-02-27 Nec Research Institute, Inc. Secure electronic voting using partially compatible homomorphisms
US5568554A (en) 1995-01-31 1996-10-22 Digital Equipment Corporation Method for improving the processing and storage performance of digital signature schemes
JP2000066587A (en) * 1998-08-24 2000-03-03 Toshiba Corp Data processing device, communication system, and recording medium
US20040131181A1 (en) * 2002-04-03 2004-07-08 Rhoads Steven Charles Method and apparatus for encrypting content
EP1383265A1 (en) 2002-07-16 2004-01-21 Nokia Corporation Method for generating proxy signatures
EP1676396A4 (en) 2003-10-03 2010-03-10 Agency Science Tech & Res METHOD FOR CRYPTOGRAPHIC PROCESSING OF A MESSAGE, METHOD FOR CREATING A CRYPTOGRAPHIC MESSAGE, METHOD FOR PERFORMING CRYPTOGRAPHIC OPERATION ON A MESSAGE, COMPUTER SYSTEM, CLIENT COMPUTER, SERVER COMPUTER AND COMPUTER PROGRAM ELEMENTS
EP1804416B1 (en) * 2006-01-02 2010-04-07 Sap Ag System and method for comparison of private values
EP1835657B1 (en) * 2006-03-16 2014-11-12 Sap Se Methods and systems for multi-party sorting of private values
US7995750B2 (en) 2006-07-06 2011-08-09 Sap Ag Privacy-preserving concatenation of strings

Also Published As

Publication number Publication date
US7986780B2 (en) 2011-07-26
DE602007004262D1 (en) 2010-03-04
US20080019510A1 (en) 2008-01-24
EP1876749B1 (en) 2010-01-13
EP1876749A1 (en) 2008-01-09

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Legal Events

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